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Finding the Fourth Proportional to 68,121.69, 93,954.68 and 44,256.05

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Solution

The fourth proportional to 68,121.69, 93,954.68 and 44,256.05 is: 61,038.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,121.69 : 93,954.68 = 44,256.05 : x
  2. Step 2: Convert to fraction form
    68,121.69/93,954.68 = 44,256.05/x
  3. Step 3: Cross multiply
    68,121.69x = 93,954.68 × 44,256.05
  4. Step 4: Simplify right side
    68,121.69x = 4,158,063,029.42
  5. Step 5: Solve for x
    x = 4,158,063,029.42/68,121.69
  6. Step 6: Final answer
    x = 61,038.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.